Z-Flex 3" x 20' Aluminum Liner Kit sqft431 Since water is non combustible

Since water is non combustible

Natural and Propane models

Thoughtfully designed with new seasonal colors

Masonry Fireplaces Industries

We feel that great strength (and life) is directly proportional to the amount of steel along the bar's diagonal

Z-Flex 3" x 20' Aluminum Liner Kit sqft431 Since water is non combustibleUL listed aluminum chimney liner kit for use with Category I natural draft gas fired heating equipment and gas fireplaces. Note: For Use with Natural Draft Appliances. Not intended for use with Category II, III, or IV gas burning appliances as defined by the National Fuel Gas Code, NFPA 54, or other appliances that result in condensation or corrosive acids on the liner of the chimney, or that create positive pressures in the chimney system.